feat: add installable semantic test runner

.github/README.md

@@ -0,0 +1,5 @@
+# GitHub automation
+
+[Back to the repository README](../README.md).
+
+- [`workflows/`](workflows/) contains the maintained CI definition.

.github/workflows/README.md

@@ -0,0 +1,6 @@
+# Workflows
+
+[Back to the repository README](../../README.md).
+
+`ci.yml` runs formatting, Clippy, unit and integration tests, package-content
+checks, and a locked install smoke test for the `coatcheck` binary.

.github/workflows/ci.yml

@@ -20,4 +20,8 @@ jobs:
       - run: cargo fmt --check
       - run: cargo clippy --all-targets --all-features -- -D warnings
       - run: cargo test --all-targets --all-features
-      - run: cargo package
+      - run: cargo package --locked
+      - run: cargo package --list | grep -Fx Cargo.lock
+      - run: cargo package --list | grep -Fx templates/Coatcheck.toml
+      - run: cargo install --path . --locked --root target/install-smoke
+      - run: target/install-smoke/bin/coatcheck --help

.gitignore

@@ -1,4 +1,5 @@
 /target
+/.coatcheck
 .DS_Store
 .env
 .env.*

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## 0.2.0
+
+- Add additive, Serde-compatible manifest-v1 and frame-v1 contracts.
+- Add validated `Coatcheck.toml` host and test configuration.
+- Ship an installable `coatcheck` binary with `init`, `doctor`, `dev`, and
+  `test` commands.
+- Generate explicit Playwright and Axe cases from the live host manifest.
+- Install project-local Bun dependencies and Playwright Chromium.
+- Gate on semantic, browser-error, and accessibility checks.
+- Write PNG, DOM, Axe, console, JSON, HTML, trace, and Markdown review
+  artifacts without pixel-baseline comparisons.
+
 ## 0.1.0
 
 - Define stories, typed args, and control kinds.